| 摘要 |
An apparatus for receiving broadcasting signals, which comprises a signal selecting and receiving portion for selecting one of ensembles to receive, a channel decoder for obtaining program information data and control information data based on the selected ensemble received by the signal selecting and receiving portion, and a control unit operative to detect a condition in which the selected ensemble has not been appropriately received by the signal selecting and receiving portion for more than a predetermined period and, when the condition is detected, to perform a control operation in such a manner as to cause the signal selecting and receiving portion to select another ensemble to receive in accordance with indication by the control information data in the case where the control information data obtained based on the selected ensemble indicate the existence of some other ensemble which is to be received in place of the selected ensemble, and to cause said signal selecting and receiving portion to change a receiving frequency successively so as to detect receivable ensembles one by one and to store in a memory portion control information data obtained from the channel decoder based on each receivable ensemble detected by said signal selecting and receiving portion in the case where the control information data obtained based on the selected ensemble do not indicate the existence of any ensemble which is to be received in place of the selected ensemble. <IMAGE>
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